CN214940591U

CN214940591U - Excavator and main beam frame thereof

Info

Publication number: CN214940591U
Application number: CN202120300907.5U
Authority: CN
Inventors: 蒋智秋; 王凯; 游仕平; 吴清本
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Zoomlion Earth Moving Machinery Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Zoomlion Earth Moving Machinery Co Ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-11-30
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to an engineering machine tool field discloses an excavator and girder frame thereof, wherein, girder frame (100) is in including beam assembly (110) and detachably setting two stand assemblies (120) at beam assembly (110) both ends, the bottom of stand assembly (120) is provided with the mounting structure who is used for assembling to the platform (200) of excavator, be provided with on beam assembly (110) and be used for the installation first mounting bracket (112) of the engine rear cover (300) of excavator. The beam assembly and the upright post assembly are detachably connected, and can be assembled after the beam assembly and the upright post assembly with the independent manufacturing precision meeting the requirements are manufactured, so that the integral manufacturing precision is ensured. And, because crossbeam assembly and stand assembly are for dismantling the connection, when needs adjustment position, can adjust after separating crossbeam assembly and stand assembly, improved position adjustment's convenience.

Description

Excavator and main beam frame thereof

Technical Field

The utility model relates to an engineering machine tool specifically relates to excavator and girder structure thereof.

Background

The main beam frame of the excavator is mounted on a platform of the excavator and is used for bearing components such as an engine rear cover and the like. Since a plurality of parts are mounted by the main beam frame to secure the assembly positions of the parts, the precision requirement for the main beam frame is high. In the prior art, the main beam frame generally includes an integrated main beam assembly and a reinforcing bracket, the main beam assembly is formed by welding a cross beam portion and a column portion, and the column portion is formed by bending an end portion connected with the cross beam portion and welded with the cross beam. Because the assembly processes such as bending and welding are required, the bending precision is not high, and the deformation after welding is serious, the required machining precision cannot be met. And the main beam assembly and the reinforcing bracket are connected with a platform of the excavator respectively after being connected with each other, and when the gap and the surface difference between the rear cover and the cab and other appearance parts assembled on the main beam cannot meet the inspection requirements by adjusting the mounting hole positions of the single pieces, the interference is eliminated by adjusting the position of the main beam frame (comprising the main beam assembly and the reinforcing bracket). For this reason, the main beam assembly and the reinforcing brace can only be completely removed from the platform. However, when the inspection is performed, because all the parts are assembled, the main beam assembly and the reinforcing support cannot be disassembled in enough space when other parts are not disassembled. For this purpose, it is also necessary to first remove other relevant parts to provide an operating space. Therefore, the existing main beam frame is inconvenient to adjust the position according to the actual loading situation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a main beam frame of excavator in order to overcome the relatively poor and inconvenient problem of adjusting the position of the precision of main beam frame that prior art exists to improve the precision and adjust the convenience.

In order to achieve the above object, an aspect of the present invention provides a main beam frame of an excavator, wherein the main beam frame includes a beam assembly and a detachable setting two column assemblies at two ends of the beam assembly, a bottom of the column assembly is provided with a mounting structure for assembling to a platform of the excavator, the beam assembly is provided with a first mounting bracket for mounting an engine rear cover of the excavator.

Optionally, the connection position of the beam assembly and the column assembly is set to be adjustable along the horizontal direction.

Optionally, one of the beam assembly and the column assembly is provided with a long hole or a plurality of mounting holes, and the other is provided with a first fastening piece fixed by passing through one of the long hole or the plurality of mounting holes.

Optionally, the beam assembly includes a beam main body, the first mounting bracket is disposed on the beam main body, and the column assembly is connected to the beam main body.

Optionally, the stand assembly includes the stand main part and install in the mounting panel of the bottom of stand main part, the stand main part connect in the crossbeam assembly, the mounting panel is provided with mounting structure.

Optionally, the pillar assembly includes a second mounting bracket mounted to the pillar body.

The present application further provides an excavator, wherein, the excavator includes platform and the girder mount of this application, mounting structure install in the platform.

Optionally, the connection position of the mounting structure and the platform is set to be adjustable along the horizontal direction.

Optionally, one of the mounting structure and the platform is provided with a long hole or a plurality of assembling holes, and the other is provided with a second fastening piece fixed through one of the long hole or the plurality of assembling holes.

Optionally, the excavator includes an engine rear cover, and the engine rear cover is mounted to the first mounting bracket.

Through above-mentioned technical scheme, crossbeam assembly and stand assembly are for dismantling to be connected, can assemble behind crossbeam assembly and the stand assembly that independent preparation precision satisfies the requirement to ensure holistic preparation precision. And, because crossbeam assembly and stand assembly are for dismantling the connection, when needs adjustment position, can adjust after separating crossbeam assembly and stand assembly, improved position adjustment's convenience.

Drawings

FIG. 1 is a perspective view of one embodiment of a host beam according to the present application;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a perspective view of the main beam mount of FIG. 1 mounted on a platform.

Description of the reference numerals

100. A main beam frame; 110. a beam assembly; 111. a beam main body; 112. a first mounting bracket; 113. a plate body; 120. a column assembly; 121. a column body; 122. mounting a plate; 123. a second mounting bracket; 124. a connecting plate; 130. a first fastener; 140. a second fastener; 200. a platform; 300. an engine rear cover.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as illustrated with reference to the accompanying drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

According to an aspect of the present application, there is provided a main beam frame of an excavator, wherein the main beam frame 100 comprises a cross beam assembly 110 and two column assemblies 120 detachably disposed at both ends of the cross beam assembly 110, a mounting structure for mounting to a platform 200 of the excavator is provided at the bottom of the column assemblies 120, and a first mounting bracket 112 for mounting an engine rear cover 300 of the excavator is provided on the cross beam assembly 110.

In the main beam frame 100 of the present application, the beam assembly 110 and the column assembly 120 are detachably connected, and can be assembled after the beam assembly 110 and the column assembly 120 with the accuracy meeting the requirement are separately manufactured, so as to ensure the overall manufacturing accuracy. In addition, because the beam assembly 110 and the column assembly 120 are detachably connected, when the position needs to be adjusted, the beam assembly 110 and the column assembly 120 can be adjusted after being separated or loosened, and the convenience of position adjustment is improved.

In addition, because the bending and welding processes in the prior art are not needed, the main beam frame 100 can be manufactured more efficiently and quickly, and the time and the cost of additional processes are saved.

In order to increase the flexibility of adjustment of the main beam frame 100, the connection position of the cross beam assembly 110 and the column assembly 120 may be configured to be adjustable in the horizontal direction. Therefore, when the position of the beam assembly 110 is only required to be adjusted to avoid interference of related components and further adjust gaps and surface differences between parts in an assembling relationship with the beam assembly 110, the connecting position of the beam assembly 110 and the column assembly 120 is only required to be adjusted.

Wherein, the connection position of the beam assembly 110 and the column assembly 120 can be adjusted by various suitable methods. In one embodiment of the present application, one of the beam assembly 110 and the column assembly 120 is provided with a long hole or a plurality of mounting holes, and the other is provided with a first fastening member 130 fixed through one of the long hole or the plurality of mounting holes. The connection position of the beam assembly 110 and the column assembly 120 can be adjusted by adjusting the fastening position of the first fastening member 130 along the elongated hole or replacing the mounting hole connecting the first fastening member 130.

Specifically, as shown in fig. 1 and 2, a horizontal connecting plate 124 may be disposed on the top of the pillar assembly 120, and a first fastening member 130 may be disposed on the connecting plate 124. The elongated holes or mounting holes are provided in the corresponding plate 113 of the beam assembly 110. Therefore, when the engine rear cover 300 is installed, the engine rear cover 300 can be detached or maintained from or attached to the main frame 100 from the bottom to the top, and only a part (for example, the engine rear cover 300) on one side of the main frame 100 needs to be removed (the engine rear cover 300 can be formed into a hinge-like structure by a gas spring so as to be turned over and opened without detaching the engine rear cover 300), and then the space left by the engine rear cover 300 can be used for detaching or maintaining without removing parts (for example, a cab, a cover plate and other covering parts) above the main frame 100.

The beam assembly 110 may be suitably configured as desired to carry the corresponding components. For example, in the embodiment shown in fig. 1 and 2, the beam assembly 110 includes a beam main body 111, the first mounting bracket 112 is disposed on the beam main body 111, and the pillar assembly 120 is connected to the beam main body 111. The first mounting bracket 112 may be a separate bracket body, and is mounted to the beam main body 111 by a suitable method (e.g., a fastener).

Column assembly 120 may take on a variety of suitable configurations for securing to a platform. As shown in fig. 1 and 2, the column assembly 120 may include a column main body 121 and a mounting plate 122 mounted at the bottom of the column main body 121, the column main body 121 is connected to the beam assembly 110, and the mounting plate 122 is provided with the mounting structure. Wherein, the mounting plate 122 can be horizontally disposed to stably adhere to the surface of the platform 200.

The column body 121 is a straight cylinder to provide stable support. The mounting plate 122 may be provided with a specific form of mounting structure according to the corresponding structure of the platform. For example, in the embodiment shown in FIG. 2, a second fastener 140 may be provided on the mounting plate 122 to correspond to a mounting hole on the platform.

Additionally, the mast assembly 120 may be utilized to assist in mounting other components on the excavator. To this end, the column assembly 120 may include a second mounting bracket 123 mounted to the column body 121. The second mounting bracket 123 may be disposed according to the position of the connected component, for example, may be disposed adjacent to the mounting plate 122 to assist in mounting the positioning spring, etc.

According to another aspect of the present application, there is provided an excavator, wherein the excavator comprises a platform 200 and the main beam frame 100 of the present application, and the mounting structure is mounted to the platform 200.

The main beam frame 100 of the present application is easy to manufacture and can ensure the overall manufacturing accuracy. Moreover, because the beam assembly 110 and the column assembly 120 are detachably connected, when the position needs to be adjusted, the beam assembly 110 and the column assembly 120 can be separated and then adjusted, or the connection (for example, bolts) between the beam assembly 110 and the column assembly 120 can be loosened and adjusted by using the adjustment amount reserved for the connection between the beam assembly 110 and the column assembly 120, so that the convenience of position adjustment is improved.

Wherein, in order to integrally adjust the mounting position of the main beam frame 100, the coupling position of the mounting structure to the platform 200 may be set to be adjustable in the horizontal direction. Wherein the adjustable attachment of the mounting structure to the platform 200 may be accomplished in a variety of suitable ways. In one embodiment of the present application, one of the mounting structure and the platform 200 is provided with a long hole or a plurality of assembly holes, and the other is provided with a second fastening member 140 fixed through one of the long hole or the plurality of assembly holes. The attachment position of the mounting structure to the platform 200 can be adjusted by adjusting the fastening position of the second fastening member 134 along the elongated hole or replacing the fitting hole to which the second fastening member 140 is attached.

Specifically, elongated holes or mounting holes may be provided in platform 200, and second fasteners 140 may be provided on mast assembly 120, such as mounting plate 122 described above.

In addition, the excavator includes an engine rear cover 300, and the engine rear cover 300 may be mounted to the first mount 112.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical scheme of the utility model in the technical conception scope, can be right carry out multiple simple variant. The present application includes the combination of individual features in any suitable manner. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. The main beam frame of the excavator is characterized in that the main beam frame (100) comprises a cross beam assembly (110) and two upright post assemblies (120) which are detachably arranged at two ends of the cross beam assembly (110), a mounting structure for being assembled to a platform (200) of the excavator is arranged at the bottom of each upright post assembly (120), and a first mounting frame (112) for mounting an engine rear cover (300) of the excavator is arranged on the cross beam assembly (110).

2. The main beam frame of the excavator of claim 1, wherein the connection position of the cross beam assembly (110) and the column assembly (120) is provided to be adjustable in a horizontal direction.

3. The main frame of the excavator of claim 2, wherein one of the cross beam assembly (110) and the column assembly (120) is provided with a long hole or a plurality of mounting holes, and the other is provided with a first fastening member (130) fixed through one of the long hole or the plurality of mounting holes.

4. The main beam of the excavator of claim 1, wherein the cross beam assembly (110) comprises a cross beam body (111), the first mounting bracket (112) is provided on the cross beam body (111), and the column assembly (120) is connected to the cross beam body (111).

5. The main beam frame of the excavator of claim 1, wherein the column assembly (120) comprises a column body (121) and a mounting plate (122) mounted to a bottom of the column body (121), the column body (121) being connected to the cross beam assembly (110), the mounting plate (122) being provided with the mounting structure.

6. The main beam of the excavator of claim 5, wherein the column assembly (120) comprises a second mounting bracket (123) mounted to the column body (121).

7. An excavator, characterized in that the excavator comprises a platform (200) and a main beam mount (100) according to any one of claims 1 to 6, said mounting structure being mounted to said platform (200).

8. Excavator according to claim 7, wherein the attachment position of the mounting structure to the platform (200) is arranged to be adjustable in horizontal direction.

9. The excavating machine according to claim 8, wherein one of the mounting structure and the platform (200) is provided with a long hole or a plurality of fitting holes, and the other is provided with a second fastening member (140) fixed through one of the long hole or the plurality of fitting holes.

10. The excavating machine of claim 7, comprising an engine rear cover (300), the engine rear cover (300) being mounted to the first mounting frame (112).